胜利油田中高渗透高含水油藏流场调控深度开发技术研究与实践  

Research and practice on deep development technology through flow field regulation in reservoirs with medium-high permeability and high water cut in Shengli Oilfield

作　　者：张世明 吕琦 王建[1] 刘丽杰 于春磊[1] 季岩峰[1] 吴义志[1] 胡慧芳 陶德硕 张民 宋志超 侯玉培 陶丽 贾元元[1] 葛君 ZHANG Shiming;LU Qi;WANG Jian;LIU Lijie;YU Chunlei;JI Yanfeng;WU Yizhi;HU Huifang;TAO Deshuo;ZHANG Min;SONG Zhichao;HOU Yupei;TAO Li;JIA Yuanyuan;GE Jun(Exploration and Development Research Institute,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257015,China)

机构地区：[1]中国石化胜利油田分公司勘探开发研究院,山东东营257015

出　　处：《油气地质与采收率》2025年第1期88-101,共14页Petroleum Geology and Recovery Efficiency

基　　金：中国石化科技攻关项目“套管钻井井网重构技术研究与工程应用”(P24089)和“多层系高含水油藏大幅度提高采收率关键技术”(P22021)。

摘　　要：胜利油田中高渗透高含水油藏发展形成了变流线调整技术,矿场应用有效控耗水、降递减,但仍然面临提高采收率幅度存在差异、单井效果差异较大、有效期较短等问题。为了提高中高渗透高含水油藏流场调控开发效果,综合运用开发地质学、渗流力学和油藏工程等理论和方法,结合大尺寸可视化微观物理模拟实验、油藏数值模拟和流场调控开发实践,提出了流场调控机制新认识,并指导形成“变流线+”、大压力梯度注采优化、动态流场调控等深度开发技术体系。研究表明:中高渗透高含水油藏流场调控具有“继承性、冗余性和再生性”特征,影响油藏流场调控效果。储层非均质性越强,流场调控继承性越强,通过“搭桥”建流线可有效降低继承性,扩大波及体积;由于冗余性的存在,未波及区域孔隙中的剩余油启动阈值较高,需提高驱替压力梯度,才能动用未波及区域孔隙剩余油,提高驱油效率;流场调控后,由于极端耗水层带的再生性特征,需不断动态调控流场,才能实现更大程度均衡驱替。以流场调控机制新认识为指导,结合中高渗透高含水油藏流场调控开发实践,形成的流场调控深度开发技术体系,可以为中高渗透高含水油藏高效长效开发提供重要技术支撑。The variable flowline modification technology has been formed in the development of reservoirs with medium-high permeability and high water cut in Shengli Oilfield,which can effectively control water consumption and reduce the decline in the field.However,it still faces issues,such as different increments of enhanced oil recovery(EOR),different effect of a single well,and short validity periods.To improve the effect of flow field regulation development in reservoirs with medium-high permeability and high water cut,theories and methods of development geology,dynamic of fluids through porous media and reservoir engineering were comprehensively applied.Based on large-scale,and visual microphysical simulation experiments,reservoir numerical simulation,and development practice of flow field regulation,a new understanding of flow field regulation mechanism was proposed,and a deep development technology system featuring“variable flowline+,”large pressure gradient injection-production optimization,and dynamic flow field regulation was formed.The results show that the flow field regulation of reservoirs with medium-high permeability and high water cut has the characteristics of“inheritance,redundancy,and regeneration”,which affects the flow field regulation effect.Stronger reservoir heterogeneity indicates a more obvious inheritance,which can be effectively reduced by“bridging”to construct flowlines,expanding the swept volume.Due to the redundancy,the starting pressure threshold of the remaining oil in pores within unswept zones is high,and the displacement pressure gradient should be increased to produce the remaining oil in pores within unswept zones to improve the displacement efficiency.Due to the regeneration of the extreme water-consuming zones,it is necessary to dynamically regulate the flow field to achieve a more balanced displacement after flow field regulation.Based on the new understanding of the flow field regulation mechanism and the practice of flow field regulation development in reservoirs wit

关 键 词：中高渗透高含水油藏 流场调控 继承性 冗余性 再生性 深度开发 

分 类 号：TE341[石油与天然气工程—油气田开发工程]